Boiler



(No Model.)

E. RUTZLBR.

BOILER.

Patented Feb. 12, 1889.

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ENOCH RUTZLER, OF BROOKLYN, XEW YORK.

BOILER.

SPECIFICATION forming part of Letters Patent No. 397,874, dated February 12, 1889. Application tiled December l, 1888. Serial No. 292,416. (No model).

To all whom, t may concern.'

Be it known that I, ENOCH RUTZLER, ol' the city ot Brooklyn, in the county of Kings and State of NewYork, have invented a new and useful Improvement in Boilers for Heating Purposes, of which the following is a specification, reference being had to the accompanying drawings.

The object of my invention is to obtain a boiler of convenient form for heating dwelling-houses and other buildings, which shall be of simple construction, easily repaired and cleaned, and economical of fuel.

l will first describe with reference to the accompanying drawings a boiler embodying my invention, and afterward point out its novelty in a claim.

Figures lv and 2 in thc 'drawings represent central vertical sect-ions ot a boiler, taken at right angles to each other. Fig. 3 represents an end view of the same.'

A B represent two upright cylinders arranged one within the other, the inner one, B, being rather higher than the outer one, A, the two being connected at the bottom in any .,aitable manner, as by a base-ring, C.

D and E are two horizontal cylinders arranged one within the other. The inner cylinder, E, has an opening at ay of a size and form corresponding with the caliber of the upright cylinder B, and is connected with said cylinder B around said opening CL. The outer cylinder, D, has in it an opening at l) ci. a size and form corresponding with the caliber of the outer upright cylinder, A, and is connected with said cylinder A around the said opening l). The heads c of the cylinder E I `nstitute tube-sheets for the reception of hor -mtal tubes (l, the open ends of which are nserted into and secured in suitable holes pre led for them in both the said tube-sheets.

lne cylinders A B C D and tubes d constitute the essential parts of a boiler in which the water-space, or water and steam space, consists of the space between the cylinders A B and the space between the cylinders D E and the interiors of the tubes d.

The interior of the cylinder B constitutes the fire-chamber having a feed opening at F, and having a grate, I, at its bottom. The

space within the cylinder B and between the water-tubes constitutes a combuStien-chamber in free communication with the fire-chamber through the opening at a. The cylinder E is provided with openings e, (one or more,) with which are connected outlet-lues G, which pass through the wall of the cylinder D to communicate with the chimney or smokestack.

At the top ot' the cylinder D is an opening,

f, (see Figs. l and 2,) at which is connected a steam-pipe or water-circulating pipe, g. (See Fig. Near the bottom of the cylinder l is an opening', 1', tor vthe connection of the feed-pipe.

The boiler, as represented in the drawings, has provided' in one end of the cylinder D an opening, h, of such size and form, and so arranged that by the removal of a man-hole plate, H, with which the said opening is fitted, free access to the tubes CZ maybe had for cleaning or repair. Such an opening and manhole plate may be provided at either or both ends of the boiler. The boiler is also represented as set upon and secured to a hollow base, .l which constitutes an ash-pit, and which may be large enough in all directions horizontally to constitute a firm support for the boiler. The boiler and base J in'ay constituteone portable structure. This boiler may be used for generating steam, in which case the water-supply will be so regulated that while properly covering the top of the cylinder E to a suitable depth it will leave room enough above for steam. Instead of being used for generating steam, the boiler .may be used for heating water for warming a dwelling or other'building, in which case the water will Alill the whole of the interior space.

In a boiler of this construction provision is a'lforded for a large combustion-chamber within which the gases evolved from the fuel in the furnace and air supplied in sufiicient quantity may enter into complete combustion, and in which the flame and heated products of such combustion may act upon the large heating-surface constituted by the interior of the cylinder E and the tubes d. The forni is such that a boiler of very considerable capacity may occupy comparatively little height,

IOO

so that it may be placed in an ordinary cellar, and yet it occupies comparatively little floor- Space.

lYhat I claim as my invention, and desire to Secure by Letters Patent, is

The combinati on, in a boiler, ol.' two upright cylinders, one oi which, arranged within the other, constitutes a Afire-eha1nber, two horizontal cylinders arranged one within the other, with the inner one in communication with the inner upright cylinder andthe outer I one in communication with the outer upright cylinder, a Series of' tubes running,` through the inner horizontal cylinder and openingl into the outer horizontal cylinder, and an outlet-flue from the :inner horizontal cylinder, the spaces between each inner cylinder and each ou ter cylinder and the interiors of said. tubes all constituting water-Spaces and the space within the inner horizontal cylinder and between the tubes constituting a combustioncharnber, substantially as herein specified.

ENOCH RUTZLER. lVi tn ess es z FREDK. IIAYNES, ARTHUR H. GAMBLIN. 

